ARM: shmobile: r8a7791: Reference DMA channels in SDHI DT nodes

Add references to the transmit and receive DMA channels in the three
SDHI nodes.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7791.dtsi

@@ -485,6 +485,8 @@ sdhi0: sd@ee100000 {
 		reg = <0 0xee100000 0 0x200>;
 		interrupts = <0 165 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp3_clks R8A7791_CLK_SDHI0>;
+		dmas = <&dmac1 0xcd>, <&dmac1 0xce>;
+		dma-names = "tx", "rx";
 		status = "disabled";
 	};
 
@@ -493,6 +495,8 @@ sdhi1: sd@ee140000 {
 		reg = <0 0xee140000 0 0x100>;
 		interrupts = <0 167 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp3_clks R8A7791_CLK_SDHI1>;
+		dmas = <&dmac1 0xc1>, <&dmac1 0xc2>;
+		dma-names = "tx", "rx";
 		status = "disabled";
 	};
 
@@ -501,6 +505,8 @@ sdhi2: sd@ee160000 {
 		reg = <0 0xee160000 0 0x100>;
 		interrupts = <0 168 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp3_clks R8A7791_CLK_SDHI2>;
+		dmas = <&dmac1 0xd3>, <&dmac1 0xd4>;
+		dma-names = "tx", "rx";
 		status = "disabled";
 	};